Canada Confirms Canadian Aided Algeria Attack

TORONTO—Canadian police confirmed on Monday that at least one of the suspected hostage takers behind January's attack on the Amenas natural-gas plant in Algeria was Canadian.

Algerian authorities and witnesses to the deadly four-day siege that began Jan. 16 had said that at least one of the militants was described by other hostage takers as Canadian. Canadian officials hadn't confirmed that, as they awaited more information from Algerian officials and conducted their own investigation.